Causes Of Increase Decrease In Liability For Unpaid Claims And Claims Adjustment Expense Related To Reserves

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- Definition

Expiry Of Asbestos And Environmental Claims Receivables Years

+ References

No definition available.

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- Definition

Reinsurance Receivables Percent

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No definition available.

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- Definition

Retrocession percent.

+ References

No definition available.

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- Definition

Amount of increase (decrease) in reserve for incurred claims and claim adjustment expenses attributable to insured events of prior fiscal years.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 40

-Section 50

-Paragraph 3

-Subparagraph (d)

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-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 5

-Section W

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- Definition

Amount of provision in the period for claims incurred in prior reporting periods and related claims settlement costs.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Financial Reporting Release (FRR)

-Number 403

-Paragraph 04

-Subparagraph b

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-Publisher FASB

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-Topic 944

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- Definition

The amount of the other adjustment made to the claims reserves during the period.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

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- Definition

Amount after valuation allowance currently billed or billable under reinsurance contracts.

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-Name Accounting Standards Codification

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-SubTopic 310

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-Section S99

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-Name Regulation S-X (SX)

-Number 210

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Reserve For Losses, LAE And Future Policy Benefit Reserve (Narrative) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Reserve For Losses LAE And Future Policy Benefit Reserve [Line Items]
Prior years' reserves	$ (39,862)	$ (18,239)	$ (3,660)
Increase (decrease) in reinsurance business	(202,418)	(148,788)	(57,205)
Increase (decrease) in insurance business	24,973	130,548	53,545
Reinsurance receivables	670,854	540,883
Retrocession percent	5.00%re_RetrocessionPercent
Contracts of insurance and reinsurance received claims during the past three years, in years	20 years
C. V. Starr [Member]
Reserve For Losses LAE And Future Policy Benefit Reserve [Line Items]
Reinsurance receivables	102,284
Reinsurance receivable, percent	15.20%
Resolution Group Reinsurance (Barbados) Limited [Member]
Reserve For Losses LAE And Future Policy Benefit Reserve [Line Items]
Reinsurance receivables	74,960
Reinsurance receivable, percent	11.20%
Federal Crop Insurance Company [Member]
Reserve For Losses LAE And Future Policy Benefit Reserve [Line Items]
Reinsurance receivables	64,591
Reinsurance receivable, percent	9.60%
Zurich Vericherungs Gesellschaft [Member]
Reserve For Losses LAE And Future Policy Benefit Reserve [Line Items]
Reinsurance receivables	60,680
Reinsurance receivable, percent	9.00%
Transatlantic Reinsurance Company [Member]
Reserve For Losses LAE And Future Policy Benefit Reserve [Line Items]
Reinsurance receivables	39,467
Reinsurance receivable, percent	5.90%
Hannover Rueck SE [Member]
Reserve For Losses LAE And Future Policy Benefit Reserve [Line Items]
Reinsurance receivables	37,224
Reinsurance receivable, percent	5.50%
Axis Reinsurance Company [Member]
Reserve For Losses LAE And Future Policy Benefit Reserve [Line Items]
Reinsurance receivables	35,198
Reinsurance receivable, percent	5.20%
Axa Seguros Gen SA De Seguros Y Reaseguros [Member]
Reserve For Losses LAE And Future Policy Benefit Reserve [Line Items]
Reinsurance receivables	33,903
Reinsurance receivable, percent	5.10%
A&E [Member]
Reserve For Losses LAE And Future Policy Benefit Reserve [Line Items]
Partially offset, related to development on A&E reserves	(137,769)
Mt. Logan Re [Member]
Reserve For Losses LAE And Future Policy Benefit Reserve [Line Items]
Partially offset, related to development on A&E reserves	$ 186